/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Selection/MeshTopologySelectionMechanic.h
End the active change and return it. Returns empty change if the selection was not modified!
[TUniquePtr](API\Runtime\Core\Templates\TUniquePtr)< [FToolCommandChange](API\Runtime\InteractiveToolsFramework\FToolCommandChange) > EndChange()